A Hybrid Hierarchical Model for Multi-Document Summarization Asli Celikyilmaz author Dilek Hakkani-Tur author 2010-07 text Proceedings of the 48th Annual Meeting of the Association for Computational Linguistics Jan Hajič editor Sandra Carberry editor Stephen Clark editor Joakim Nivre editor Association for Computational Linguistics Uppsala, Sweden conference publication celikyilmaz-hakkani-tur-2010-hybrid https://aclanthology.org/P10-1084/ 2010-07 815 824